/* 3D-OrthoAP — folha de estilo única */

:root{
  --tinta:#101820;
  --tinta-2:#18232e;
  --papel:#f4f6f7;
  --branco:#ffffff;
  --aco:#b9c6cf;
  --aco-escuro:#5f7180;
  --cobalto:#1f6fb2;
  --cobalto-claro:#4f97d6;
  --whats:#1faa54;
  --display:'Sora',system-ui,sans-serif;
  --texto:'Instrument Sans',system-ui,sans-serif;
  --mono:'Spline Sans Mono',ui-monospace,monospace;
  --wrap:1120px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  font-family:var(--texto);
  font-size:1.0625rem;
  line-height:1.65;
  color:var(--tinta);
  background:var(--papel);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cobalto)}
:focus-visible{outline:3px solid var(--cobalto);outline-offset:3px;border-radius:2px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:0;background:var(--cobalto);color:#fff;padding:10px 18px;z-index:99}
.skip:focus{left:12px;top:12px}

/* etiqueta mono usada como "eyebrow" */
.tag{
  font-family:var(--mono);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cobalto);
  display:inline-flex;align-items:center;gap:10px;
}
.tag::before{content:"";width:26px;height:1px;background:var(--cobalto)}
.escuro .tag{color:var(--cobalto-claro)}
.escuro .tag::before{background:var(--cobalto-claro)}

h1,h2,h3{font-family:var(--display);line-height:1.15;letter-spacing:-.01em}
h2{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:700;margin:14px 0 18px}
.sec{padding:96px 0}
.sec-head{max-width:640px;margin-bottom:48px}
.sec-head p{color:var(--aco-escuro)}
.escuro .sec-head p{color:var(--aco)}

/* ---------- header ---------- */
.hdr{
  position:sticky;top:0;z-index:50;
  background:rgba(16,24,32,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(185,198,207,.14);
}
.hdr__in{display:flex;align-items:center;justify-content:space-between;height:72px}
.marca{display:flex;align-items:center;gap:12px;text-decoration:none;line-height:1.1}
.marca__dente{height:48px;width:auto}
.marca__txt{display:flex;flex-direction:column}
.marca__nome{font-family:var(--display);font-weight:700;font-size:1.22rem;color:#fff;letter-spacing:.02em}
.marca__nome b{color:var(--cobalto-claro);font-weight:700}
.marca__sub{font-family:var(--mono);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;color:var(--aco)}
.nav{display:flex;align-items:center;gap:28px}
.nav a{color:var(--aco);text-decoration:none;font-size:.95rem}
.nav a:hover{color:#fff}
.nav a.btn{color:#fff}
.menu-btn{display:none;background:none;border:1px solid rgba(185,198,207,.35);color:#fff;border-radius:8px;padding:8px 12px;font:inherit;cursor:pointer}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--display);font-weight:600;font-size:.98rem;
  text-decoration:none;border-radius:10px;
  padding:14px 26px;transition:transform .15s ease,background .15s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn--whats{background:var(--whats);color:#fff}
.btn--whats:hover{background:#178c45}
.btn--linha{border:1.5px solid var(--aco-escuro);color:var(--tinta)}
.escuro .btn--linha{border-color:rgba(185,198,207,.4);color:#fff}
.btn svg{flex-shrink:0}

/* ---------- hero ---------- */
.hero{background:var(--tinta);color:#fff;padding:88px 0 0;overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.hero__logo{justify-self:center;display:flex;align-items:center;gap:26px}
.hero__logo img{width:min(42vw,190px);height:auto;filter:drop-shadow(0 10px 30px rgba(0,0,0,.45))}
.hero__logo-txt{display:flex;flex-direction:column;gap:6px}
.hero__logo-txt .l1{font-family:var(--display);font-weight:700;font-size:2rem;letter-spacing:.04em;color:#fff}
.hero__logo-txt .l1 b{color:var(--cobalto-claro);font-weight:700}
.hero__logo-txt .l2{font-family:var(--mono);font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;color:var(--aco);border-top:1px solid rgba(185,198,207,.3);padding-top:8px}
.hero h1{
  font-size:clamp(2.1rem,4.6vw,3.4rem);
  font-weight:700;max-width:15em;margin:20px 0 22px;
}
.hero h1 em{font-style:normal;color:var(--cobalto-claro)}
.hero__sub{max-width:36em;color:var(--aco);font-size:1.1rem;margin-bottom:34px}
.hero__ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:20px}

/* arco ortodôntico */
.arco{display:block;width:100%;height:auto;margin-top:26px}
.arco .fio{
  fill:none;stroke:var(--aco);stroke-width:2.5;stroke-linecap:round;
  stroke-dasharray:1600;stroke-dashoffset:1600;
  animation:desenhar 2.4s .3s ease-out forwards;
}
.arco .bracket{
  fill:var(--tinta);stroke:var(--cobalto-claro);stroke-width:2;
  opacity:0;animation:surgir .5s ease-out forwards;
}
@keyframes desenhar{to{stroke-dashoffset:0}}
@keyframes surgir{to{opacity:1}}
@media (prefers-reduced-motion:reduce){
  .arco .fio{stroke-dashoffset:0}
  .arco .bracket{opacity:1}
}

/* ---------- faixa de credenciais ---------- */
.cred{background:var(--tinta-2);color:#fff;border-top:1px solid rgba(185,198,207,.12)}
.cred__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.cred__item{padding:30px 26px;border-left:1px solid rgba(185,198,207,.12)}
.cred__item:first-child{border-left:0;padding-left:0}
.cred__num{font-family:var(--display);font-weight:700;font-size:1.5rem;color:var(--cobalto-claro)}
.cred__txt{font-size:.9rem;color:var(--aco);margin-top:4px}

/* ---------- serviços ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:var(--branco);
  border:1px solid #dde4e8;
  border-radius:14px;
  padding:34px 30px;
  position:relative;
}
.card h3{font-size:1.25rem;font-weight:700;margin:18px 0 10px}
.card p{color:#3d4c58;font-size:.99rem}
.card ul{list-style:none;margin-top:14px}
.card li{
  padding-left:22px;position:relative;
  font-size:.95rem;color:#3d4c58;margin-top:7px;
}
.card li::before{
  content:"";position:absolute;left:0;top:.52em;
  width:9px;height:9px;border:2px solid var(--cobalto);border-radius:2px;
}
.card__icone{
  width:48px;height:48px;border-radius:10px;
  background:var(--tinta);color:var(--cobalto-claro);
  display:flex;align-items:center;justify-content:center;
}
.card--breve{background:var(--tinta);border-color:var(--tinta)}
.card--breve h3,.card--breve p,.card--breve li{color:var(--aco)}
.card--breve h3{color:#fff}
.card--breve li::before{border-color:var(--cobalto-claro)}
.card--breve .card__icone{background:rgba(79,151,214,.14)}
.selo-breve{
  position:absolute;top:26px;right:26px;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;
  color:var(--cobalto-claro);border:1px solid var(--cobalto-claro);
  border-radius:99px;padding:5px 12px;text-transform:uppercase;
}
.aviso-tabela{
  margin-top:30px;padding:22px 26px;
  background:var(--branco);border:1px dashed var(--aco);
  border-radius:12px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
}
.aviso-tabela p{color:#3d4c58;max-width:34em}

/* ---------- processo ---------- */
.escuro{background:var(--tinta);color:#fff}
.passos{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:passo}
.passo{border-top:2px solid rgba(185,198,207,.25);padding-top:22px;counter-increment:passo}
.passo::before{
  content:"0" counter(passo);
  font-family:var(--mono);font-size:.82rem;letter-spacing:.12em;color:var(--cobalto-claro);
}
.passo h3{font-size:1.08rem;margin:10px 0 8px}
.passo p{font-size:.93rem;color:var(--aco)}

/* ---------- sobre ---------- */
.sobre{display:grid;grid-template-columns:380px 1fr;gap:60px;align-items:center}
.retrato{
  aspect-ratio:4/5;border-radius:16px;overflow:hidden;position:relative;
  background:
    radial-gradient(120% 90% at 20% 10%,rgba(79,151,214,.28),transparent 55%),
    var(--tinta);
  display:flex;align-items:flex-end;justify-content:flex-start;
}
.retrato__ini{
  font-family:var(--display);font-weight:700;
  font-size:clamp(4rem,8vw,6.5rem);color:rgba(185,198,207,.28);
  padding:22px 28px;line-height:1;
}
.retrato__nota{
  position:absolute;top:22px;left:28px;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--aco);
}
.sobre h2{margin-top:14px}
.sobre p+p{margin-top:14px}
.sobre .destaque{
  border-left:3px solid var(--cobalto);
  padding-left:18px;margin-top:22px;
  font-family:var(--display);font-weight:600;font-size:1.06rem;
}

/* ---------- FAQ ---------- */
.faq{max-width:760px}
.faq details{border-bottom:1px solid rgba(185,198,207,.2);padding:6px 0}
.faq summary{
  cursor:pointer;list-style:none;
  font-family:var(--display);font-weight:600;font-size:1.06rem;
  padding:18px 40px 18px 0;position:relative;color:#fff;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:1.3rem;color:var(--cobalto-claro);
}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--aco);padding:0 0 20px;max-width:60ch}

/* ---------- CTA final ---------- */
.cta-final{text-align:center;background:var(--tinta-2)}
.cta-final h2{font-size:clamp(1.9rem,4vw,2.7rem);max-width:18em;margin:14px auto 14px}
.cta-final>.wrap>p{color:var(--aco);max-width:36em;margin:0 auto 34px}
.cta-final .hero__ctas{justify-content:center}
.cta-final .contato-alt{margin-top:26px;font-size:.95rem;color:var(--aco)}
.cta-final .contato-alt a{color:var(--cobalto-claro)}

/* ---------- rodapé ---------- */
.rodape{background:var(--tinta);color:var(--aco);padding:56px 0 40px;border-top:1px solid rgba(185,198,207,.12)}
.rodape__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.rodape h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--aco-escuro);margin-bottom:14px}
.rodape p,.rodape a{font-size:.93rem;color:var(--aco)}
.rodape a{text-decoration:none}
.rodape a:hover{color:#fff}
.rodape ul{list-style:none}
.rodape li{margin-top:8px}
.rodape__nome{font-family:var(--display);font-weight:700;color:#fff;font-size:1.05rem;line-height:1.4}
.rodape__legal{border-top:1px solid rgba(185,198,207,.12);padding-top:22px;font-size:.82rem;color:var(--aco-escuro)}

/* ---------- botão flutuante ---------- */
.zap-flutuante{
  position:fixed;right:22px;bottom:22px;z-index:60;
  width:58px;height:58px;border-radius:50%;
  background:var(--whats);display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(16,24,32,.35);
  transition:transform .15s ease;
}
.zap-flutuante:hover{transform:scale(1.08)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.visivel{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---------- responsivo ---------- */
@media (max-width:900px){
  .sec{padding:72px 0}
  .cards{grid-template-columns:1fr}
  .passos{grid-template-columns:repeat(2,1fr)}
  .cred__grid{grid-template-columns:repeat(2,1fr)}
  .cred__item{border-left:0;padding-left:0}
  .sobre{grid-template-columns:1fr;gap:36px}
  .retrato{max-width:380px}
  .rodape__grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .hero__grid{grid-template-columns:1fr;gap:34px}
  .hero__logo img{width:min(34vw,150px)}
}
@media (max-width:720px){
  .nav{
    position:fixed;inset:72px 0 auto 0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:var(--tinta);border-bottom:1px solid rgba(185,198,207,.15);
    padding:10px 24px 22px;display:none;
  }
  .nav.aberto{display:flex}
  .nav a{padding:12px 0;font-size:1.05rem;width:100%}
  .nav a.btn{margin-top:10px;justify-content:center}
  .menu-btn{display:block}
  .passos{grid-template-columns:1fr}
  .hero{padding-top:64px}
}